Philandering and politicians seem to go hand in hand. But a scandal involving one of the most powerful political couples in the U.S., who'd been married for nearly 25 years, is still sure to cause a tabloid frenzy. When Arnold Schwarzenegger announced in May that he and his wife Maria Shriver would be separating, people wondered what went wrong. They didn't have to wonder for long, however, as Arnie confessed to the Los Angeles Times that he'd had an affair with the family's longtime housekeeper that had resulted in the birth of a son over a decade earlier, before the former actor became governor of California. Shriver, who apparently initiated the separation after learning of the betrayal, and Schwarzenegger had met in 1977; they have four children together. (Their youngest son was born just days before Schwarzenegger's love child.) The blow was thought to be particularly hard for Shriver, who during her husband's 2003 election campaign had defended him against allegations of sexual harassment and womanizing. In July, the former journalist, current philanthropist and Kennedy heiress officially filed for divorce.